Definition

libpng 1.0.6 through 1.0.32 1.2.0 through 1.2.26 and 1.4.0beta01 through 1.4.0beta19 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a PNG file with zero length "unknown" chunks which trigger an access of uninitialized memory.

oval:org.mitre.oval:def:10326

libpng 1.0.6 through 1.0.32 1.2.0 through 1.2.26 and 1.4.0beta01 through 1.4.0beta19 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a PNG file with zero length "unknown" chunks which trigger an access of uninitialized memory.